Drive mechanism.



J. H. APP.

Y DRIVE MEGHANIS-M. l APPLICATION FILED JULY 5, 1911.

- J. H'. APP.

DRIVE MECHANISM. APPLICATION FILED JULY 5, 1.911.

1,029,736, v v Patented June 18,1912.

' 2 SHEETS-SHEET 2.

Fay. Z.

.umns H. APP, or DETROIT, MICHIGAN.

1 DRIVE MECHANISM. y

Specification of Letters Patent.

. Application inea .my 5, 1911. serial No. 636,902. g

y To all `whom 'it may concern:

,zen of the United States of America, residing at Detroit, fin the county of Wayne and` State of Michigan have invented certain new and useful improvements' in Drive- Mechanism, Vof which the following is a speciticatiomreference beinghad therein to the accompanying drawings.4

This invention relates 'to' driving mecha- 'nism ofmotor vehicles, and it has for one of its objects the provision of such a" mechanism in which a worm and gear are'employed, in connection with an internal gear transmission between the driven shaft and the vehicle wheels. v l

The invention has furthermore for itsobject the improved construction of the support for the engine-driven shaft on the driving axle, such support comprising an improved organization of the casing and the 1 bearings for the various elements contained in the claims.A

therein. 1 Y

Further objects of the invention will hereinafter appear and be particularly defined The invention, has been'clearly illustrated inthe accompanying drawings,` .in which motor-driven shaft of the vehicle. 'Itis similar characters denote similar parts, and in which- Figure 1 represents the top View of the. driving axle and wheels. of an automobile,-

together with the driving mechanism therewfor embodying my invention; 'Fig.r2 is a vertical section on line 2-2 of Fig. 1; and

Fig. 3 is' a similar section on line 3-'3.ot"

Fig. 1.

Referring to the drawings, 10 denotes the journaled in a roller and thrust-bearin 11,

and a ba ll .bearing-12, both ofv which eari wheels W of the vehicle. l Y

; yThe` shaft 10`- has a worm 14:- in engage merit4v With a gear 15 which is connected by a differential mechanism (not shown) in the housing with a pair of shaft-sections 1G, 17

extendmg to opposite sides therefrom, each' shaft being journaled inA suitable bearings in tubular casings 1.8, 19, attached to the main housing and also supported at their outer ends in brackets j 20, 21 secured to the axle `A preferably at a point immediately below the sprin perches 22, 23, which con# stitute a part o? said axle. Each shaftl, 17 carries a pinion 24 in engagement with an internal. gear annulus 25 'which is detachably secured by bolts 27 Ito the Bange 26- of a brake drum 26, the latter being secured lto the vehicle wheel W. If deslred, another size gear and pinionmay be sub- `stituted for those shown to vary the speed ratio of the shafts and wheels in accord-v ance with therequirements and purposes of the vehicle. v

In order .to insure a free-running condition of the shaft 10 when working under load, I preferably` emplo'y a ball 30 between the end of said shaft'and the axle, (see Fig. .1), so that the thrust on the shaft will be',4

taken up in a line directed against the axle itself. By this organization, it will, be

racentedaune 1s, 1912.

noted, the cross-shafts 16, 17 are disposedv in a plane below the horizontal plane 'of the wheel trunnions and when radia rods Rv are employed, the structural stiffness of the sof entire mechanism becomes verymuch eng` hanced. v l

Changes Imay be made in the organization' and also in the the elements wit out departing from the spirit of the invention.V

l claim: V

' 1. The combination with a -stationary axle, v and Wheels journaled thereon, of a differential shaft journlaled on said axle for driving said Wheels, av worm gear on said shaft, a motor shaftin direct thrustline with the axle, a worm' thereon engaging said worm gear, and a thrust member between sa'id motor shaft and front sideof the axle. Y i

2. The combination with a stationary axle, and.' wheels journaled thereorn` of articular construction'v of "l j brackets carried bfi-theo positeends'of said` means "for connectingv'said Wliees andthe axle, a housing secured t ereto lntermediate di'ieiential shaft. A

its ends, tubular vconnectionsbetweenthe brackets and housing, a differential shaft journaled therein7 afmotor-shaft in direct thrust-line against the axle, a, worm .and

gear connection between said shafts and disposed in said housing, a thrust bearingbetween the motor` shaft and the axle, and

` .Y 10 In testimony Vwhereof I ax myfsignture 1n presence of two wltnesses. v f

JAMES Hi Ajman f,

Witnesses: .v 

